<template>
    <div>
        <input type="text" v-model="message">
        <button @click="change">修改</button>
    </div>
</template>

<script>
export default {
    data() {
        return {
            message: "修改前"
        }
    },
    methods: {
        change() {
            // this.message = "修改后"
            this.$nextTick(() => {
                
            })

        }
    }
}
</script>